/*
Copyright (c) 2009, Young Digital Planet SA
All rights reserved.

* Redistribution and use in source and binary forms, with or without 
  modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this 
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, 
  this list of conditions and the following disclaimer in the documentation 
  and/or other materials provided with the distribution.
* Neither the name of the Young Digital Planet SA nor the names of its 
  contributors may be used to endorse or promote products derived from this 
  software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
POSSIBILITY OF SUCH DAMAGE.
*/
package com.yauthor.module
{

	/**
	 * Used with IMarkAnswerSkin to sets it's visual state
	 * @see IMarkAnswerSkin
	 */
	public class MarkAnswerSkinState
	{
		/**
		 * Show skin in it's default state, no mark is shown.
		 */
		public static const EMPTY:MarkAnswerSkinState=new MarkAnswerSkinState();
		/**
		 * Use skin to indicate that correct answer is shown.
		 */
		public static const SHOW_ANSWERS:MarkAnswerSkinState=new MarkAnswerSkinState();
		/**
		 * Use skin to show that user answer is correct.
		 */ 
		public static const MARK_CORRECT:MarkAnswerSkinState=new MarkAnswerSkinState();
		/**
		 * Use skin to show that given answer is correct but not the best. Usually
		 * is used in places where answers can have weight and user answer has weight
		 * greater than 0 but not the highest.
		 */ 
		public static const MARK_PARTIALLY_CORRECT:MarkAnswerSkinState=new MarkAnswerSkinState();
		/**
		 * Use skin tho show that given answer is wrong.
		 */
		public static const MARK_WRONG:MarkAnswerSkinState=new MarkAnswerSkinState();

		public function toString():String
		{
			if (this === EMPTY) {
				return "empty";
			} else if (this === SHOW_ANSWERS) {
				return "show answers";
			} else if (this === MARK_CORRECT) {
				return "mark correct";
			} else if (this === MARK_WRONG) {
				return "mark wrong";
			} else if (this === MARK_PARTIALLY_CORRECT) {
				return "mark partially correct";
			} else {
				return "unknown";
			}
		}
	}
}